From 126d4198a9739f07fe456da27aef10076b955185 Mon Sep 17 00:00:00 2001 From: Huayang Duan Date: Wed, 24 Jul 2019 09:57:40 +0800 Subject: mediatek/mt8183: Add SAMSUNG 4GB LPDDR4X discrete DDR support BUG=b:80501386 BRANCH=none TEST=Boots correctly and stress test passes on Kukui. Change-Id: I27164f0909edb9d9398835e292fb845f0e342391 Signed-off-by: Huayang Duan Reviewed-on: https://review.coreboot.org/c/coreboot/+/34532 Reviewed-by: Hung-Te Lin Reviewed-by: Julius Werner Reviewed-by: Martin Roth Reviewed-by: Huayang Duan Tested-by: build bot (Jenkins) --- .../google/kukui/sdram_params/Makefile.inc | 1 + .../sdram-lpddr4x-K4UBE3D4AA-MGCL-4GB.c | 41 ++++++++++++++++++++++ 2 files changed, 42 insertions(+) create mode 100644 src/mainboard/google/kukui/sdram_params/sdram-lpddr4x-K4UBE3D4AA-MGCL-4GB.c (limited to 'src/mainboard/google/kukui/sdram_params') diff --git a/src/mainboard/google/kukui/sdram_params/Makefile.inc b/src/mainboard/google/kukui/sdram_params/Makefile.inc index fbc505b588f9..4d91998e527d 100644 --- a/src/mainboard/google/kukui/sdram_params/Makefile.inc +++ b/src/mainboard/google/kukui/sdram_params/Makefile.inc @@ -1,4 +1,5 @@ sdram-params := +sdram-params += sdram-lpddr4x-K4UBE3D4AA-MGCL-4GB sdram-params += sdram-lpddr4x-H9HCNNNCPMALHR-4GB sdram-params += sdram-lpddr4x-MT53E1G32D4NQ-4GB sdram-params += sdram-lpddr4x-KMDH6001DA-B422-4GB diff --git a/src/mainboard/google/kukui/sdram_params/sdram-lpddr4x-K4UBE3D4AA-MGCL-4GB.c b/src/mainboard/google/kukui/sdram_params/sdram-lpddr4x-K4UBE3D4AA-MGCL-4GB.c new file mode 100644 index 000000000000..8d855ff1ba30 --- /dev/null +++ b/src/mainboard/google/kukui/sdram_params/sdram-lpddr4x-K4UBE3D4AA-MGCL-4GB.c @@ -0,0 +1,41 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2018 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include + +struct sdram_params params = { + .impedance = { + [ODT_OFF] = {0x9, 0x7, 0x0, 0xF}, + [ODT_ON] = {0xB, 0x9, 0x0, 0xE} + }, + .wr_level = { + [CHANNEL_A] = { {0x22, 0x1C}, {0x23, 0x1D} }, + [CHANNEL_B] = { {0x26, 0x23}, {0x26, 0x23} } + }, + .cbt_cs = { + [CHANNEL_A] = {0x6, 0x5}, + [CHANNEL_B] = {0x6, 0x6} + }, + .cbt_mr12 = { + [CHANNEL_A] = {0x56, 0x58}, + [CHANNEL_B] = {0x58, 0x56} + }, + .emi_cona_val = 0xF053F154, + .emi_conh_val = 0x44440003, + .emi_conf_val = 0x00421000, + .chn_emi_cona_val = {0x0444F051, 0x0444F051}, + .cbt_mode_extern = CBT_NORMAL_MODE, + .delay_cell_unit = 868, +}; -- cgit v1.2.3